Lào Cai (Sa Pa)
September
Weather in Lào Cai for September 2025
Your guide to Lào Cai weather in September - trends and predictions
Thunder Warning - See hour by hour.
So far, September 2025 in Lào Cai is slightly warmer than the historical average by 0.7 °C.
The forecast for the upcoming days in Lào Cai predicts a temperature of 27.8 °C, which is slightly above the historical average.
In general, the average temperature in Lào Cai at the beginning of September is 27.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 28.4 °C by the end of September.
Lào Cai experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 439.1 mm.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
1
Dry days
29
Rainy days
0
Snow days
25°/17°
Temperatures
4 km/h
Avg max wind
88 %
Avg humidity
Lào Cai Weather September
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Temperatures trend during September in Lào Cai
See the weather trend as well as the moving average line
September weather in Lào Cai day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy light rain with thunder | 27° /19° | 3.8 mm | 6 | |
| 2 Sept. | Patchy light rain with thunder | 27° /20° | 6.5 mm | 6 | |
| 3 Sept. |  Light rain shower | 26° /19° | 7.7 mm | 6 | |
| 4 Sept. | Patchy light rain with thunder | 27° /19° | 8.3 mm | 6 | |
| 5 Sept. | Patchy rain possible | 28° /20° | 6.9 mm | 6 | |
| 6 Sept. | Patchy rain possible | 29° /21° | 3.2 mm | 6 | |
| 7 Sept. | Light rain shower | 28° /19° | 11.1 mm | 6 | |
| 8 Sept. |  Moderate rain | 28° /19° | 46.8 mm | 6 | |
| 9 Sept. | Light rain shower | 26° /18° | 34.9 mm | 6 | |
| 10 Sept. | Light rain shower | 24° /17° | 55 mm | 5 | |
| 11 Sept. | Light rain shower | 24° /17° | 8.8 mm | 5 | |
| 12 Sept. | Light rain shower | 24° /18° | 12.7 mm | 6 | |
| 13 Sept. | Light rain shower | 25° /18° | 10.3 mm | 6 | |
| 14 Sept. | Light rain shower | 25° /17° | 9.2 mm | 6 | |
| 15 Sept. | Patchy light rain with thunder | 26° /17° | 12.9 mm | 6 | |
| 16 Sept. | Light rain shower | 25° /18° | 15.2 mm | 6 | |
| 17 Sept. | Patchy rain possible | 28° /21° | 2.3 mm | 2.4 | |
| 18 Sept. | Moderate rain | 28° /19° | 5.5 mm | 2.6 | |
| 19 Sept. | Moderate rain | 27° /20° | 5 mm | 2.6 | |
| 20 Sept. | Patchy rain possible | 28° /20° | 4.5 mm | 2.9 | |
| 21 Sept. | Moderate rain | 27° /21° | 5.1 mm | 5 | |
| 22 Sept. | Patchy rain possible | 27° /20° | 3.5 mm | 5 | |
| 23 Sept. | Patchy rain possible | 25° /20° | 4.7 mm | 5 | |
| 24 Sept. |  Partly cloudy | 30° /21° | 0 mm | 6 | |
| 25 Sept. | Partly cloudy | 29° /22° | 0.1 mm | 7 | |
| 26 Sept. | Patchy rain possible | 27° /21° | 0.5 mm | 5 | |
| 27 Sept. | Patchy rain possible | 29° /20° | 1.2 mm | 5 | |
| 28 Sept. | Patchy rain possible | 27° /21° | 3.5 mm | 5 | |
| 29 Sept. | Patchy rain possible | 32° /23° | 3.5 mm | 6 | |
| 30 Sept. | Patchy rain possible | 25° /23° | 3.9 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Lào Cai in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Lào Cai forecast closer to your planned date for the most up-to-date weather information.
Change Month
Lào Cai in September - FAQ
What are the expected maximum and minimum temperatures in Lào Cai during September?
During September, expect a variety of temperatures with highs around 25° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Lào Cai during September?
Significant rainfall exceeding 439.1 mm is expected in Lào Cai during September, occurring over more than 29 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Lào Cai during September?
The average wind speed in Lào Cai during September is 4 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Lào Cai
Explore the daily rainfall trends and prepare for Lào Cais September weather 💧
UV exposure in Lào Cai during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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